syzbot

==================================================================
BUG: KCSAN: assert: race in __block_task kernel/sched/sched.h:2634 [inline]
BUG: KCSAN: assert: race in dequeue_entities+0x6df/0x760 kernel/sched/fair.c:7168

race at unknown origin, with assert no writes to 0xffff8881045090e8 of 4 bytes by task 11081 on cpu 0:
 __block_task kernel/sched/sched.h:2634 [inline]
 dequeue_entities+0x6df/0x760 kernel/sched/fair.c:7168
 pick_next_entity kernel/sched/fair.c:5618 [inline]
 pick_task_fair kernel/sched/fair.c:8847 [inline]
 pick_next_task_fair+0x7d/0x410 kernel/sched/fair.c:8867
 __pick_next_task kernel/sched/core.c:5888 [inline]
 pick_next_task kernel/sched/core.c:6410 [inline]
 __schedule+0x27c/0x940 kernel/sched/core.c:6561
 __schedule_loop kernel/sched/core.c:6684 [inline]
 schedule+0x55/0xc0 kernel/sched/core.c:6699
 do_nanosleep+0xa3/0x300 kernel/time/hrtimer.c:2032
 hrtimer_nanosleep+0xc4/0x1c0 kernel/time/hrtimer.c:2080
 common_nsleep+0x68/0x90 kernel/time/posix-timers.c:1365
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1411 [inline]
 __se_sys_clock_nanosleep+0x20a/0x240 kernel/time/posix-timers.c:1388
 __x64_sys_clock_nanosleep+0x55/0x70 kernel/time/posix-timers.c:1388
 x64_sys_call+0x253f/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:231
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000000 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 11081 Comm: syz.2.2713 Not tainted 6.11.0-syzkaller-07341-gbaeb9a7d8b60 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
==================================================================